Hi,
Yes, the pixel shift map shows the shift in pixels.
That is, at each voxel you get a value which is the
number of pixels (or voxels if you prefer) that the
distortion shifts the intensity from that voxel along
the phase encode direction.
I hope that is clear.
All the best,
Mark
On 11 Nov 2009, at 03:50, Lee Dongha wrote:
> Hi, Mark
>
> In pixel shift map,
> What does index indicate ?
> Is it the degree of pixel shift (pixels)?
>
> It's an simple question, but I confused.
>
> Thanks a lot,
>
> Dongha
>
>
> Mark Jenkinson 쓴 글:
>> Hi,
>>
>> It is a pixel shift map, so is in units of voxels (pixels).
>>
>> All the best,
>> Mark
>>
>> On 11 Nov 2009, at 01:42, Lee Dongha wrote:
>>
>>> Dear everyone,
>>>
>>> I'd like to fugue function for unwarping EPI.
>>> But, I don't understand --saveshift option.
>>> What does it mean? What does it's units ? Is it mm?
>>>
>>> ex ) fugue -p <unwrapped phase map> -d <dwell-to-asym-ratio>
>>> --saveshift=<shiftmap> [options]
>>>
>>> Thanks a lot,
>>>
>>> dongha
>>>
>>
>
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